/*

Copyright 2009 Nicola Dal Pont

Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at

http://www.apache.org/licenses/LICENSE-2.0

Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.

Version ${MAJOR_VERSION}.${MINOR_VERSION}${BETA_MARK} Build ${BUILD_NUMBER}

*/

package org.astoolkit.xmlmapping
{
	import memorphic.xpath.XPathQuery;
	import memorphic.xpath.model.XPathContext;
	
	import mx.core.IFactory;

	public class ClassSelector
	{
		public var expression : String;
		public var targetClass : IFactory;
		
		XMLMAPPING_PRIVATE function process( inContext : XPathContext, inNode : XML ) : Boolean
		{
			var query : XPathQuery = new XPathQuery( expression, inContext );
			var result : Object = query.exec( inNode );
			if( result is Boolean )
				return result == true;
			else if( result is XMLList )
				return XMLList( result ).length() > 0;
			else
				return result != null;
		}
	}
}